Idol's Jessica Sanchez: Jennifer Lopez, Casper Smart Are "Cute Together"

Casper Smart and Jennifer Lopez at the 2012 Vanity Fair Oscar Party. Credit: Jeff Vespa/VF12/

Skylar Lane and Colton Dixon may not be romantically linked, but there is one American Idol couple the contestants can't stop buzzing about: judge Jennifer Lopez and her backup dancer beau Casper Smart!

A frequent presence on Idol's Los Angeles set, Smart, 25, has clearly impressed the season 11 group.

"I met him a couple times. He seems like a nice guy, but we didn't really talk much," Phil Phillips told Us Weekly backstage after Wednesday's show of Lopez's boyfriend of five months. Still, Smart has already earned bonus points from Phillips, who sang "Give a Little More" by Maroon 5. "[Casper recently told me] 'Oh man you did really good.'"

Fellow top 7 singer Jessica Sanchez, 16, thinks the couple -- who hooked up in November 2011, four months after Lopez, 42, split from Marc Anthony -- are the real deal. "They are cute together," Sanchez tells Us.

Premiering her new music video, "Dance Again, on Idol April 5, Lopez gave America a glimpse at her working relationship with Smart, who appears as her love interest on-screen.

"She's hot. I love her!" gushes Elise Testone of mom of twins Lopez. "I felt a little like I was invading [Lopez and Smart's] personal space [watching the video] but she's so beautiful and I really do look up to her. She's just rocking what she's got!"